Perhaps you are not based in the UK, but I thought there wasn't an option to spec the Audi Sound System on cars here? It was either only the stock (6 speaker) set up, which I heard (no pun intended) was not that good, or the B&O which is 15 speaker with 680watts amp power. I know in other markets the AS* sound system has 10 speakers including centre and sub, and approx 180w of power. Truth be told, if the AS* sound system was avaliable as an option, I probably would have checked that option rather than the B&O. However me personally haven't heard either the stock (6 speaker), nor the AS* (10 speaker), but I have no regrets selecting the B&O.